Every muslim is urged to perform Salah (prayer) on time. This app shows remaining time for the current Salah time. If you are on time or in the beginning of Salah time, you will see greenish hue filling your top screen.
If you see yellowish hue, then you must hurry to perform Salah. If you see reddish hue, then you are in the discouraged time to perform the current Salah time, go and hurry even more! This app requires location services to deduce the Salah time.